Measuring instrument



FIG. 1 is a front bottom perspective view of a measuring instrument showing our new design;

FIG. 2 is a top front perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of the portion designated by dash-dot broken line circle A in the front view thereof;

FIG. 10 is an enlarged view of the portion designated by dash-dot broken line circle D in the top plan view thereof;

FIG. 11 is an enlarged view of the portion designated by dash-dot broken line circle E in the bottom plan view thereof;

FIG. 12 is an enlarged view of the portion designated by dash-dot broken line circle B in the left side view thereof; and,

FIG. 13 is an enlarged view of the portion designated by dash-dot broken line circle C in the right side view thereof.

The dashed broken lines shown in FIGS. 1-13 are not part of the claimed design. 

CLAIM The ornamental design for a measuring instrument, as shown and described. 